Question 1151625
You can use the binomial probability formula,
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Probability (P) (k successes in n trials) = nCk * p^k ^ (1-p)^(n-k), where nCk = n!/(k! * (n-k)!)
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For this problem, n = 20, p = 0.60
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For example, k = 4
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P (4 pink nursery kits needed out of 20) = 20C4 * (0.60)^4 * (1-0.60)^(20-4) = 0.0003
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You can use your calculator for the rest
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